                      :sem {:pred :faint}
                      :subcat {:2 '()}}}
 
-    "fall" {:synsem {:cat :verb
-                     :sem {:pred :fall}}
-          :english {:past "fell"}}
+   "fall" {:transitivize false
+           :synsem {:cat :verb
+                    :sem {:pred :fall}}
+           :english {:past "fell"}}
 
     "fall asleep"
    (let [subject-semantics (atom :top)]

   "turn"
   (let [subj (atom :top)
         obj (atom :top)]
     [{:synsem {:cat :verb
                :sem {:pred :turn-on
                      :subj subj
                      :obj obj}

                         :aux false}}
               {:synsem {:aux false}})

      ;; phrasal-verbs: default is false
      (default {:synsem {:cat :verb}
                :phrasal-verb false})

      ;; subject-and-reflexive-pronoun agreement
      (if-then {:synsem {:sem {:reflexive true}
                         :cat :verb
